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Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil

Author

Listed:
  • Maitê Rocha Silveira

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru, SP 17033-360, Brazil)

  • Paulo César Lodi

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru, SP 17033-360, Brazil)

  • Natália de Souza Correia

    (Department of Civil Engineering, Federal University of Sao Carlos (UFSCar), Rodovia Washington Luiz, São Carlos, SP 17033-360, Brazil)

  • Roger Augusto Rodrigues

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru, SP 17033-360, Brazil)

  • Heraldo Luiz Giacheti

    (Department of Civil and Environmental Engineering, São Paulo State University (UNESP), Av. Engenheiro Luiz Edmundo Carrijo Coube 14-01, Bauru, SP 17033-360, Brazil)

Abstract

The civil engineering construction industry is nowadays one of the largest consumers of natural resources. Therefore, the proposal of using alternative materials that seek to reduce waste production or the use of previously generated waste is becoming increasingly necessary. This paper evaluated the effect of recycled polyethylene terephthalate (PET) strips on the mechanical properties of a cement-treated lateritic sandy soil. Unconfined compression strength (UCS) tests were conducted in natural and PET strips mixtures in different strips lengths and contents. In addition to UCS tests, compaction tests were also conducted in order to analyze the effect of these inclusions on the properties of a lateritic sandy soil. Lastly, direct shear tests were conducted on natural soil-strip, soil-cement, and soil-cement-strip composites using optimum UCS results. The addition of strips to the soil-cement composite showed an increase in the soil cohesion parameter. The inclusion of strips also provided a more ductile behavior to the soil, presenting greater deformations with fewer stress peaks. Results showed that the recycled strips’ inclusion in soil-cement can provide a material with high strength, ductility, and a highly sustainable alternative.

Suggested Citation

  • Maitê Rocha Silveira & Paulo César Lodi & Natália de Souza Correia & Roger Augusto Rodrigues & Heraldo Luiz Giacheti, 2020. "Effect of Recycled Polyethylene Terephthalate Strips on the Mechanical Properties of Cement-Treated Lateritic Sandy Soil," Sustainability, MDPI, vol. 12(23), pages 1-19, November.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:23:p:9801-:d:450212
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    Citations

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    Cited by:

    1. Lingshi An & Junhao Chen & Dongwei Li & Peng Li & Lei Guo & Guanren Chen, 2022. "Accumulative Strain of Sand-Containing Soft Soil Reinforced by Cement and Sodium Silicate under Traffic Loading," Sustainability, MDPI, vol. 14(21), pages 1-14, October.
    2. Lingshi An & Xinxin Zhao & Dongwei Li & Liu Yang & Peng Li & Lei Guo & Lina Wang, 2022. "Cyclic and Post-Cyclic Behaviors of Stabilized Sand-Containing Soft Soil in Coastal Areas," Sustainability, MDPI, vol. 14(22), pages 1-17, November.
    3. Bisma Khalid & Fahad Alshawmar, 2023. "Exploring the Feasibility of Using Recycled PET Strips with Palm Leaf Ash for Sustainable Soil Stabilization," Sustainability, MDPI, vol. 15(18), pages 1-16, September.
    4. Maitê Rocha Silveira & Sabrina Andrade Rocha & Natália de Souza Correia & Roger Augusto Rodrigues & Heraldo Luiz Giacheti & Paulo César Lodi, 2021. "Effect of Polypropylene Fibers on the Shear Strength–Dilation Behavior of Compacted Lateritic Soils," Sustainability, MDPI, vol. 13(22), pages 1-15, November.

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